Eminence Speakers :: Sigma-Pro-18A-2

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Sigma Pro 18A-2, 18", 800W, 8 ohm Pro Audio Speaker

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SIGMA PRO 18A-2 8 ohm Professional Series

THIS ITEM IS TEMPORARILY UNAVAILABLE FOR INTERNATIONAL SHIPPING

Recommended for professional audio as a woofer in vented enclosures.

SPECIFICATION
Nominal Basket Diameter	18", 457.2mm
Nominal Impedance*	8 ohms
Power Rating
Watts	650W
Music Program	1300W
Resonance	28Hz
Usable Frequency Range	41Hz-2.4kHz
Sensitivity***	99
Magnet Weight	120 oz.
Gap Height	0.375", 9.53mm
Voice Coil Diameter	3", 76.2mm

THIELE & SMALL PARAMETERS
Resonant Frequency (fs)	28Hz
DC Resistance (Re)	6.29
Coil Inductance (Le)	1.90mH
Mechanical Q (Qms)	8.28
Electromagnetic Q (Qes)	0.30
Total Q (Qts)	0.29
Compliance Equivalent Volume (Vas)	441.2 liters / 15.6 cu.ft.
Peak Diaphragm Displacement Volume (Vd)	695cc
Mechanical Compliance of Suspension (Cms)	0.24mm/N
BL Product (BL)	22.1 T-M
Diaphram Mass inc. Airload (Mms)	130 grams
Efficiency Bandwidth Product (EBP)	93
Maximum Linear Excursion (Xmax)	6.1mm
Surface Area of Cone (Sd)	1140.0 cm2
Maximum Mechanical Limit (Xlim)	18.0mm